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BQ20Z80-V102: Issues communicating with bq20z80

Part Number: BQ20Z80-V102
Other Parts Discussed in Thread: BQ20Z80

Has anyone had any issues communicating with the bq20z80 or similar part? We are trying to program some parts for a customer and we created a board with a socket that just targets the SMBUS lines. I have the VCC's connected to 3.3V, I have all the grounds hooked up and I have a 100K resistor on X1. what am I missing?